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Shimano XT Di2 RD-M8050-GS Rear Derailleur

Mfg PartNum:IRDM8050GS
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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

The Shimano XT Di2 RD-M8050-GS Rear Derailleur features powerful motors that respond instantly for precise and reliable shifting no matter the riding conditions. Shifting is seamless even with the clutch engaged or when using Shimano's wide range 11-speed cassettes, which is in no small part due to the low-profile Shadow Plus design that increases stability while also keeping the the derailleur away from obstacles on the trail.

Compatible Shimano Di2 electronic groupsets only.


  • E-Tube electric wire transmission
  • Programmable, multi-shift and Shimano Synchronized Shift functions
  • Shadow Plus clutch chain stabilization
  • Compatible with Shimano 11-speed MTB chainrings and cassettes
  • Maximum sprocket: 42T(2x11-speed) / 46T(1x11-speed)
  • Minimum sprocket: 11T
  • Front difference: 10T
  • Total capacity: 35T
  • Weight: 329g
Ordered by Most Relevant First
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Reviewed 7/10/2018
by bobvin
Cycling Enthusiast
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Agh yes, the joy of DI2

I have been riding DI2 since it was first introduced. I tried SRAM EAGLE XX1 on my new Jones mtb, but sold that off in a hurry and replaced with XT Di2. It is so nice to have the perfect-ever-time shifting of Di2. Sure, the SRAM stuff worked like it should, but was clunky, noisy, and crude compared to Shimano Di2.

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